Envelop.



Jiiiss'eini. cocirnorr, or vsiii FRANCISCO, c itiroiuni.V

To ail 'whom it may concern:

Be itknown that I, J

San Francisco, in the county of a new and useful Envelop, of lowing is a s terms as wi to construct and use the same.

and toprovide., in such velop,

same cheaply.

I accom hsh my object by the means illusdrawing of tra-ted in e accompanying velo showing my envelop in the commercial form, ready to receive the inclosure; Fig. "3 a sectiona the envelop when entirely view through 2,5 sealed.

In forming thei envelop blank oflmy eri-" d to thi velop I make a body ortion 1; an

Spec'icationlof Letters atent.

EARL Cooiriior'r,

The obect of my invention is to provide a novelenveiop that cannot be opened ont disclosing the fact that it has been tarnfor. sealing the saine Without 15 soihng the fingers and for manufacturing the Fivure 1 is a perspective view of my k t e form of the blank before folding over and sealing; Fig. 2 is ayiew 'of ENVELOP.

easier the insertion tongue 6. Flap 5 is of substantially the shape shown and euinmed along its lower edge as indicated day the darkened space. The darkened space on lla -2 and tongue 6 lwhich is to render Franblank. ln the lateral flaps l orovide slots 11 and 12. In flap 5 I provide a slot 13 of smaller whereby I' do not need to cause all of sai slots to register accurately when flaps are folded.

In `preparing my envelo for commercial purposes, ard 8 is folded a ong line 9. Flap 4 is then olded along line 14, and {iap 3 is folded over llap 4 along line 15, so that slots withneatli aps 3 and 4. Flap 5 is then folde up and pasted; and it is to be noted that owing to the cutaway portion of llap 3, the area along which flap 5 is guinine covers 'and is. astable to that-portion of flap 4 which lies above the registered slots and holds` it securely without the necessity of having the under side .of flap 3.

whic

is in its commercial forni, ready to be spld n body portion are attached along lines of foldto the user. To seal, the gumrned portion ing au upper lap 2, e. let lateral iiap 3, a along tongue 6 and tlap 2 is nioistened, an 'right lateral flap 4 and a lower flap 5. Flap the cardboard piece is inserted into the reg- 2 is rovided with a tongue 6, which is reinistered slots with a rolling movement, Alree '7 forced With-a strip of cardboard 6r stuck ing the mostened portions clear unti t .e lightly on said tongue. Tongueis guinrne tongue is well into place. The moistene an overits surface, that is to say, the shown in shown in Fi" 1.

and in its agency as preventing authorized opening thereof. will be ex lained below. Flap substantia 1y of the form shown.

7, the utility wher-eci will appear in sciipt'ion of 'my envelop arranged for coin nier-cial purposes. Flap 4 is made stantially the forni shoivn, and is provide 1With-a guar 8 foldable. along line 9. tion is particularly called to\ along the outer edge o guard Sthe u the crimp 10 portions are then subiected to slight ressure and the oardb main in place. ts absence indicates that the enve op hasbeen tampered with after sealing; and as its adhesion to the tongue isY weaker than the adhesion of the tongue to the guard flap it will be impossible to steam the envelop open without loosening the tongue from the flap and it can then never surface the niet that the envelop has been tampered `with is at once apparent.

`\\Wliatl claim as new and desire to secure by Letters latentof the United States is as follows, 'inodiications within the scope ot the claims being reserved.

ln an envelop blank, a rectangular blank havin@ flaps on each ot its four edges three of sai lla s having slots which register when they are olded together, a separate stillenthe de- Of llbf) Attentility of 1 1 and 12 shall register, and guard S lay under- Umani emergent-OFFICE@ f f Patented segus, loca-, Appunti niet December is, 1907. Serin No. meses.

shows the only other area oi gununing on the dimensions than slots -11 and 1 2 gum on Afterfo ding and pasting Hap 5 the envelop oard piece is allowet to rebe placed in the same condition again so that' los 

